The tax is payed to the state not the banks and would replace some of the patchwork of other taxes they use, many of which indirectly discourage land improvemen

The tax is payed to the state not the banks and would replace some of the patchwork of other taxes they use, many of which indirectly discourage land improvement (by taxing the value of the property built on the land) or being productive (income tax, which does not tax vacant lots, only productive ones)